PayPlans is an open-source membership software for selling your services online. It provides
automatic subscriptions and effortless billing management. The integration with Post Affiliate Pro is possible with an integration plugin.
Get the plugin
The first step is to get the plugin. You can download it from site http://www.readybytes.net/payplans/apps.html#/app/pp-postaffiliatepro
You can configure the plugin following this documentation: